It's a sign of low social status. Actually if you are perceptive you will notice people will subconsciously talk slightly louder right when you were beginning to say something, when they otherwise weren't going to say anything at all. What I mean is, they arent speaking over you because you both happened to try and speak at the same time. Actually they started talking precisely because you were going to say something so they spoke out to silence your voice. It isnt something most people are consciously aware of. But it's one of those peculiar quirks of human social dynamics. I suppose they receive gratification and pleasure from silencing a lower status person and thus asserting their position in the group.
Based on the current laws and norms your winning strategy will be to withhold any investment into a group that doesnt value you, and to put your attentions elsewhere. They only get power out of it if you willingly give theknyour attention and mental energies. Instead you should zone out, show disinterest, ignore them if they dont reciprocate, and better yet move away and cease associating with them entirely if possible (often isnt an option ofc)
